Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

LEE ONN CHIENG
NPI 1659899342
Neurological Surgery in Riverside, CA

Active since September 01, 2017PECOS Enrolled
4510 BROCKTON AVE STE 175, RIVERSIDE, CA 92501(951) 786-5550 Get Directions Write a Review

NPPES record last updated: September 10, 2026. Verified against the NPPES registry weekly; last sync: September 27, 2026.

Record update history: Sep 10, 2026, Aug 28, 2026, Apr 11, 2025 and 2 more (5 updates tracked since 2017).

About Lee Onn Chieng NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

LEE ONN CHIENG (NPI 1659899342) is an individual neurological surgery provider in Riverside, California, licensed in California (A206131) and active in the NPI registry since September 2017. He is enrolled in Medicare PECOS and maintains a secondary practice location in Saint Joseph.

NPPES Registry Identity

NPI1659899342
Entity TypeIndividualMale
Primary Taxonomy207T00000X
Provider Legal NameLEE ONN CHIENG
Location Address4510 BROCKTON AVE STE 175Riverside, CA 92501-4020
Mailing AddressPo Box 743111Atlanta, GA 30374-3111
Sole ProprietorNo
Enumeration DateSeptember 1, 2017
Last NPPES UpdateSeptember 10, 20265 updates tracked since enumeration
NPPES CertifiedSeptember 10, 2026
✔ NPI 1659899342 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNeurological SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207T00000X
Licenses✔ Licensed in CA · A206131✔ Licensed in MI · 4301511828
Definition
A neurological surgeon provides the operative and non-operative management (i.e., prevention, diagnosis, evaluation, treatment, critical care, and rehabilitation) of disorders of the central, peripheral, and autonomic nervous systems, including their supporting structures and vascular supply; the evaluation and treatment of pathological processes which modify function or activity of the nervous system; and the operative and non-operative management of pain. A neurological surgeon treats patients with disorders of the nervous system; disorders of the brain, meninges, skull, and their blood supply, including the extracranial carotid and vertebral arteries; disorders of the pituitary gland; disorders of the spinal cord, meninges, and vertebral column, including those which may require treatment by spinal fusion or instrumentation; and disorders of the cranial and spinal nerves throughout their distribution.
4510 BROCKTON AVE STE 175, Riverside, CA 92501

Secondary Practice Location 1

Location 11234 Napier AveSaint Joseph, MI 49085-2112 · Phone (269) 556-1990

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Lee Onn Chieng is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92501 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$136.04 typical visit price
range $59.60 – $179.42
Typical copayment $34.01 (range $14.90 – $44.85)
Most-billed visit code 99204
Established Patient
$74.08 typical visit price
range $19.37 – $146.42
Typical copayment $18.52 (range $4.84 – $36.60)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Physician Assistant
4510 BROCKTON AVE STE 175
RIVERSIDE, CA 92501
Neurological Surgery
4510 BROCKTON AVE STE 175
RIVERSIDE, CA 92501
Physician Assistant
4510 BROCKTON AVE STE 175
RIVERSIDE, CA 92501
Neurological Surgery
4510 BROCKTON AVE STE 175
RIVERSIDE, CA 92501

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Lee Onn Chieng's NPI number?

The NPI number for Lee Onn Chieng is 1659899342. It was assigned to this individual provider in the NPPES registry on September 1, 2017.

Where is Lee Onn Chieng located?

Lee Onn Chieng practices at 4510 Brockton Ave Ste 175, Riverside, CA 92501. The listed phone number is (951) 786-5550.

What is Lee Onn Chieng's specialty?

The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.

Is Lee Onn Chieng enrolled in Medicare?

Yes. Lee Onn Chieng is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Lee Onn Chieng was last updated on September 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.